Archery bow



Nov. 28, 1961 .1. w. GRUSS I 3,010,445

ARCHERY BOW Filed April 1, 1960 F igj INVENTOR.

JACK w. GRUSS BY y/M 77W ATTORNEY United States Patent 3,010,445 ARCHERY BOW Jack W. Gruss, 10521 Grandview Drive, La Mesa, Calif.

Filed Apr. 1, 1960, Ser. No. 19,309

6 Claims. (Cl. 124-23) The present invention relates to an archery bow, and more particularly relates to an archery bow which includes an end formed to receive a loop of the bow string.

The usual bow string includes a loop which is to be timed within a string nockin the end of the lower bow limb. More particularly, the loop at one end of the string is fitted within the string nock of the lower limb, and the bow is braced to permit the loop'at the other end of the bow string to be fitted within the string nock in the upper limb. This operation can be very dangerous, particularly in' bracing strong bows, since the loop in the lower limb has a tendency to slip out of the string nock, and the rapid unbracing of the bow can cause serious injury to a'person. Bows of the prior art have attempted to overcome this difiiculty by various means,

such as cutting away part of the body of the bow end;

to accommodate snap or clamp elements, and such as fitting a rubber tip or the like over the bow end. The former method tends to weaken the bow, and the latter method tends to effect the tautness of the bow string and thus the resilience of one limb with respect to the other.

According to the present invention, a bow end, preferably the bow end of the lower limb, is formed to include a central tip portion. This tip portion may take various shapes, but is conveniently made of a bulbous, longitudinally extending configuration terminating in a rounded outer tip with a larger diameter central portion. A string nock is provided adjacent the base of the tip portion for receiving the loop of the bow string. This string nock extends across the back and sides of the bow end and takes the form of a Y configuration at the face of the bow end. Novel side sections are extended in a generally longitudinal direction from the sides of the bow end on either side of the central tip portion. These side sections are arranged in spaced relationship with the tip portion, each of the side sections being spaced from the tip portion a distance somewhat less than the diameter of the string. With this arrangement the string loop may be urged into the string nock with a slight pressure to force it past the side sections and the adjacent central tip portion, but inadvertent disengagement of the loop from the string nock is substantially eliminated. That is, the side sections prevent the string loop from coming out of the string nock through a sideways twisting of the loop.

The side sections are preferably made of a resilient or springy glass fiber laminate which is aflixed to the sides of the bow end after the main body has been fabricated. The side sections are adhesively secured in position to the sides of the bow end, and form a natural and smooth extension of the contour of the sides of the bow end. The two pieces of fiber glass extend just beyond the wide part of the tip portion, and taper with the contour of the bow sides toward the wide part of the tip so that the openings between the wide part of the tip portion and the side sections is smaller than the diameter of the bow string, while the openings between the base of the tip portion and the side pieces is larger than the diameter of the string.

Actual use of this bow has demonstrated that the unique construction of the bow end at the lower limb of the body has eliminated any tendency for the bow string to inadvertently slip out of the string nock.

Other objects and features of the present invention Patented Nov. 28, 1961 2 will be readily apparent to those skilled in the art from the following specification and appended drawings wherein is illustrated a preferred form of the invention, and in which:

FIGURE 1 is a side elevation of a bow;

FIGURE 2 is an enlarged side elevationrof the end of the lower limb of the bow, showing the bow string in position;

FIGURE 3 is a front elevational view of the bow end illustrated in FIGURE 2;

FIGURE 4 is a front elevational view of the bow end of FIGURE 3, but without the bow string; and

FIGURE 5 is a rear elevational View of the bow end of FIGURE 4.

Referring now to the drawings, the novel bow end is illustrated in a bow 10 having an upper limb 12 and a lower limb 14 ofmodified S. shape. However, it will be understood that the bow end of the present invention may also be used in bows having a variety of other shapes since in all bows there is still the problem of securely mounting the loop 16 of the bow string 18 so that it will not become disengaged from the bow end.

The-bow end 20 of the lower limb 14 is formed to include .a bulbous central portion 22 extending in a. generally longitudinal'direction, and terminating at its outer end in a roundedtip and at its inner end or base in a groove or string nock 24. String nock 24 is located adjacent the base of tip portion 22 and extends across the back, vFIGURE 5, and sides of bow end 20 into a Y configuration at the face of bow end 20, FIGURE 3.

Side elements or sections 26 are afiixed to the sides of bow end 20 and extend in a generally longitudinal di-' rection just beyond the widest or central portion of tip 22. Side sections 26 are each spaced from tip portion 22 at the widest portion thereof a distance less than the diameter of string 18 so that loop 16 can be placed in the position illustrated only by the application of slight. pressure. During bracing and unbracing of the bow the novel relationship between side sections 26 and tip portion 22 prevents loop 16 from inadvertent slippage over the sides of the lower end of limb 14, slippage over tip 22, or rotation or cocking around tip 22 or limb 14.

Side sections 26 are preferably added to the bow end after bow 10 has been fabricated. That is, bow end 20, central portion 22, and string nock 24 are first formed, and then side sections 26 are adhesively secured to the sides of bow end 20 by any usual and conventional ad hesive or the like. Any excess glue which accumulates in string nock 24 is cleaned out, and the outer faces of side sections 26 are smoothly faired into the sides of bow end 20.

Operation of the present how 10 is simple and straightforward. First, the loop of string 18 is looped around the upper end of upper limb 12. Next, string loop 16 is slipped over tip 22 between side sections 26 and into string nock 24. Limbs 12 and 14 are bent to allow upper end of string 18 to be slid upwardly until it slips into the string nock of the upper end of limb 12. While string 18 is being slid upwardly for seating within the string nock of upper limb 12, loop 16 is securely held within string nock 24 of the lower limb 14, and inadvertent unbracing of the bow by slippage of loop 16 out of string nock 14 is substantially eliminated.

Thus it will be seen that the present bow 10 provides a novel means for preventing inadvertent slippage of loop 16 out of string nock 24 during usage of bow 10, and particularly when bow 10 is braced to apply string 18.

While a certain preferred embodiment of the invention has been specifically disclosed, it is understood that the invention is not limited thereto as many variations will be readily apparent to those skilled in the art and spaced from'said tip portion a distance less than the diameter of said string whereby said loop cannot inadvertently slip out of said string nock when said bow is braced or unbraced.

2. In an archery bow having a string with a loop at one end, a bow end according to claim 1 and characterized in that said tip portion is bulbous in configuration and is undercut at its base so as to be spaced from each of said side sections a distance greater than the diameterof said string.

,"3." In an archery bow having'a string with a loop at one end, a bow end according to claim 1 and characterized'in that said-side sections are made of laminated glass fiber whereby they are sufliciently resilient to permit passage of said loop into said string nock.

4. In an archery bow having a'string with a loop atone end, a bow end according to claim 1 and characterized in that said side sections taper from the sides of said bow end inwardly toward said tip portion.

- 5. In an archery bow having a string with a loop at one end, a bow end formed to include a bulbous central tip portion, and a string nock adjacent the base of said tip portion and extending across the back and sides of said bow end into a Y configuration at the face of said bow end for receiving said loop, the imProvementfcomprising side sections extending from the sides of said bow end in spaced relationship with said tip portion and terminating outwardly of said string nock, said side sections each being spaced from said tip portion a distance somewhat less than the diameter of said string whereby said loop cannot readily be removed from said string nock when said bow is braced. V

6. In an archery bow having a string with a 100p at 'one end, a bow end according to'claim ,5 and character ized in that said sidesections. extend just beyond the widest part of said bulbous tip portion.

References Cited in the file of this patent V UNITED STATES-PATENTS 466,932 Cornell' .Jan Q 12, 1892 1,340,070 Markham May 11,1920 1,960,477 Cowdery May 29, 1934 2,000,832 Fisher May 7, 1935 2,836,166 Bear May 27, 

